package com.example.demo;

import jakarta.servlet.http.HttpSession;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.bind.annotation.SessionAttribute;

@RequestMapping("/user")
@RestController
public class UserController {
    @RequestMapping("/login")
    public Boolean login(String userName, String password, HttpSession session){

        //判空,参数校验
//        if(userName == null || userName.length()==0
//                ||password ==null || password.length()==0){
//            return false;
//        }
        if(!StringUtils.hasLength(userName)|| !StringUtils.hasLength(password)){
            return false;
        }
        //验证密码
        //防空指针报错
        if("admin".equals(userName) && "pass".equals(password)){
            //设置Session
            session.setAttribute("userName",userName);
            return true;
        }
        return false;
    }

    @RequestMapping("/index")
    public String getUserName(@SessionAttribute("userName") String userName){
        return userName;
    }
}
